AI Note Taker S2T9
Turn any audio or video into accurate, AI-polished notes
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About S2T9
S2T9 is an AI note taker that turns speech into text in minutes, not hours. Record a voice note and watch the live transcription appear in real time, or import audio and video files — from MP3 to WAV — and get an accurate transcript of meetings, lectures, interviews and more.
What sets S2T9 apart is what happens after the transcription. Its AI can generate summaries of long recordings and automatically correct grammar and punctuation, so raw speech becomes polished, readable notes. Segmented audio playback keeps every line of text in sync with the recording, and multi-language support means you can transcribe content from speakers around the world.
S2T9 is built for anyone who captures spoken words for a living: professionals turning meetings into minutes, students converting lectures into study notes, journalists transcribing interviews, and creators pulling text from video. If you’d rather listen than type, S2T9 does the typing for you.
Key features
Live speech transcription
Record audio notes and watch them turn into text in real time, ready to edit and share.
Audio and video file transcription
Import popular audio formats like MP3 and WAV, or convert video content into readable text effortlessly.
AI summaries and cleanup
Let AI create summaries and fix grammar and punctuation so your transcripts read like polished notes.
Segmented playback
Listen to audio segments in sync with the text, so you can jump straight to the moment that matters.
How to use S2T9
Download S2T9 from the App Store
S2T9 is free to download and works on iPhone and iPad running iOS 14 or later.
Record or import your audio
Record live speech in the app, or import an audio or video file you want transcribed.
Let the AI transcribe it
S2T9 converts the speech to text in minutes, with multi-language support for global content.
Summarize, polish and share
Use the AI to generate a summary and correct grammar, then review the text alongside synced audio playback.
Frequently asked questions
How accurate is S2T9's transcription?
S2T9 uses advanced AI to capture spoken words accurately, and its AI enhancement pass corrects grammar and punctuation for clean, readable output. Clear recordings with minimal background noise transcribe best, and the synced segmented playback makes it easy to verify any passage against the original audio.
Is S2T9 free to use?
S2T9 is free to download from the App Store. You can start transcribing right away; some premium features may be offered inside the app.
Does S2T9 work offline?
S2T9 needs an internet connection for transcription and AI summaries, since the speech-to-text processing runs on powerful cloud models rather than your phone.
Can S2T9 transcribe video files?
Yes. Alongside audio recordings and files in popular formats like MP3 and WAV, S2T9 converts video content into readable text — handy for interviews, webinars and recorded presentations.
Does S2T9 support languages other than English?
Yes. S2T9 offers multi-language transcription, so you can convert speech to text in multiple languages for meetings, lectures and interviews with international speakers.
Which devices does S2T9 support?
S2T9 runs on iPhone and iPad with iOS 14.0 or later. An Android version is planned — check back on this page for the Google Play link.
Get S2T9 today
Free to download — join the users who already love it.